I put the setup CD to a new Linksys router into my CD Rom drive, and it immediately began to make a whirring noise. I got a little worried, so I right clicked the drive from My Computer with the intention of ejecting. It just got stuck on the hourglass symbol (this is Windows XP) and asked if I wanted to end the non-responsive program. I said yes, and logged off through ctrl+alt+del since the windows bar at the bottom disappeared. Now when I start up the computer, the drive begins to whirr (cd still inside of it because I can't open it manually either) and it will not go past a black screen with a white, flashing underscore at the upper right hand side of the screen. I'm now on my laptop. What should I do? :(